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'47k Transit Mix Concrete Co. <br /> The potentiometric distribution map indicates that, west of the West Fault, groundwater generally <br /> flows from the ridge areas, under a northward lateral hydraulic gradient of about 0.14 (i.e., from <br /> higher potential to lower potential), towards the Little Turkey Creek fracture zone, that acts as a <br /> groundwater discharge zone. Some groundwater discharges to the creek surface water flow or <br /> to ground surface on the sides of the valley bottom in the form of seeps. This is consistent with <br /> a downward vertical hydraulic gradient component at monitoring site GW-5 (ridge) and upward <br /> vertical hydraulic gradient component at monitoring sites GW-3 and GW-4 (seep areas) and <br /> GW-1 (creek area). <br /> Groundwater flow within the Little Turkey Creek valley bottom generally flows to the east, <br /> following the valley profile, under a lateral hydraulic gradient of about 0.04. The much flatter <br /> hydraulic gradient along the Little Turkey Creek valley bottom suggests that the granodiorite <br /> rocks underlying the valley bottom are more highly fractured, and have a much higher ability to <br /> transmit groundwater flow than the granodiorite forming the ridges flanking the valley. <br /> During the fall and winter months, surface water runoff is minimal and groundwater discharge <br /> along the entire length of the Little Turkey Creek watershed provides the primary source of creek <br /> surface water flow. During these periods, Little Turkey Creek shows an overall slightly gaining <br /> flow within the reach from the western Ranch property boundary to the West Fault, even though <br /> there are gaining and losing sections within this reach, as a result of groundwater discharge to <br /> the creek along this reach (Figure G-7). <br /> Hitch Rack Ranch Quarry Permit Application <br /> October 3,2017 G-33 <br />